Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| D645168 | Window component extrusion | 09/13/2011 |
| D492041 | Window component extrusion | 06/22/2004 |
| 5785926 | Precision small volume fluid processing apparatus A high precision, small volume fluid processing system employs open ended capillary tubes to meter, aliquot and mix small volumes of sample fluid and reagents. The system has an automatic mechanism for moving the capillary tubes as well as automated sub-s... | 07/28/1998 |
| 5516254 | Supplementary unit for fork lift trucks The present invention refers to a supplementary unit for a travelling fork lift truck used for picking up platelike mounting elements. The platelike mounting elements are picked up by a pick-up means of the supplementary unit, said pick-up means being sec... | 05/14/1996 |
| 5511333 | Paintball clip magazine A removable projectile magazine for paintball guns has a cylindrical, spring loaded housing with an opening at one end for receiving and ejecting paintballs. The end also has a one-way valve consisting of a plurality of flexible fingers subtending a hemis... | 04/30/1996 |
| 5508629 | Method and apparatus for inspecting integrated circuit probe cards A method and apparatus for inspecting integrated circuit probe cards in which the probe points of the probe card are scanned across a checkplate having a conductivity transition border. The impedances between the probe points and the checkplate as they cr... | 04/16/1996 |
| 5452477 | Item of swimming wear An item of swimming wear (10) arranged to be worn closely to the body of a user to provide or enhance buoyancy, which item (10) comprises a piece of flexible closed-cell foam material (12) combined with a piece of textile or plastics material (11).... | 09/26/1995 |
| 5435490 | Multifunctional adjustable irrigation system for plant bedding and low crop environments A system for irrigating plant bedding environments comprising a helically threaded spray fitting adapted for insertion into standard plant bedding irrigation conduit. The spray fitting is adjustable in terms of flow direction and flow rate, and different ... | 07/25/1995 |
| 5429627 | Reusable feminine hygiene system Reusable, washable feminine napkins and panty liners have multiple absorbent layers encasing a fluid imperiable layer. The napkin has a side opening pocket for an extra absorbent filler pad. Both the napkin and the panty liner employ a centrally located m... | 07/04/1995 |
| 5414344 | Non-contact apparatus for sensing energization of high voltage signal line An E-field sensing apparatus detects the energization of high voltage utility transmission and distribution lines. An external housing substantially shields internal components of the apparatus from the detected E-field. A conductive wire extends from the... | 05/09/1995 |
| 5406809 | Mechanical security fixture for personal computers A novel fixture (8) for securing personal computers has a tether cable (10) connected to a loop portion (13) which is in turn connected to an expansion slot cover plate (12) for a personal computer. Once the fixture (8) is installed in an expansion slot o... | 04/18/1995 |
| 5349938 | Reciprocatable barrel pneumatic gun A semiautomatic pneumatic gun is provided incorporating a reciprocatable striker-barrel which performs the normal functions of a barrel and a striker, sliding during firing from a cocked position in response to the urging of a striker power spring to impa... | 09/27/1994 |
| 5331990 | Safety cane A safety cane incorporates an ambient light sensitive illumination device for conserving battery power. A tipping detector is also incorporated which sounds an audible alarm after a first time delay. If the cane is not retrieved by the end of the second t... | 07/26/1994 |
| 5302210 | Rapid deployment method for recovering oil from beaches A rapid deployment system for recovering oil from beachers includes an articulated vehicle for propelling and suspending a vacuum head above a beach or the like. A selected area of the beach is irrigated with sufficient quantities of water to saturate the... | 04/12/1994 |
| 5300096 | Electromyographic treatment device An electrical muscle stimulator converts electromyographic (EMG) signals to digital words for analysis and display by a computer program. The therapist selects a variety of different parameters appropriate for the individual patient, and instructs the dev... | 04/05/1994 |
| 5285903 | Method for recovering particulate and scavenging formaldehyde in a wood panel fabrication process A thin film membrane filtration system recovers particulate from the waste water stream of a wood panel fabrication process to a desired concentration of approximately 30-50% solid by weight. The high concentration level enables improved transport or disp... | 02/15/1994 |
| 5280458 | Sunlit world globe A sunlit world globe provides a realistic and constantly accurate day/night pattern on the surface of the globe. The globe employs an internal, rotating baffle for a light source. The baffle rotates with respect to a semi-transparent shell constituting a ... | 01/18/1994 |
| 5259954 | Portable intravenous solution preparation apparatus and method A modular, portable intravenous solution preparation system consists of a plurality of reusable modular sections for creating ultra pure, intravenously injectable quality water and a consumable reagent module for producing an injectable quality solution. ... | 11/09/1993 |
| 5242591 | Apparatus for filtering open drains A method and apparatus for filtering open drains, such as rain gutters, uses at least one elongated tube constructed from a plurality of strands of flexible, resilient, durable, corrosion resistant material. An affixing system removably affixes each of th... | 09/07/1993 |
| 5210791 | Telephone headset on-line indicator A telephone headset on-line indicator uses a light emitting diode located on a boom of a headset to indicate that the user is on-line with another telephone. Circuits are described for use with use with conventional telephones, electronic telephones and P... | 05/11/1993 |
| 5209384 | Portable tool kit The present invention discloses a portable tool kit which allows the organization and transportation of a complete set of hand tools by an individual to a remote repair location while leaving the individual's hands free. The invention has a front panel, a... | 05/11/1993 |
| 5192435 | Self-cleaning vacuum head for recovering oil from beaches and the like A self-cleaning vacuum head is disclosed which has the ability to discriminate between particles of different size, or the ability to separate fluids from particulate matter. The invention has two relatively moving surfaces which provide a changing locus ... | 03/09/1993 |
| 5157209 | Semi-automatic safety handgun In a semi-automatic firearm is a simplified firing mechanism that includes a manual safety system and a doubly redundant automatic safety system. The firing mechanism includes a trigger, a trigger bar, a trigger lever, a firing pin safety, spring loaded s... | 10/20/1992 |
| 5152443 | Utility belt A multi-segmented utility belt which employs a plurality of substantially rigid sections connected by flexible portions. A variety of different tool holders can be pivotally and rotatably supported from the belt. The belt is provided with a hinge mechanis... | 10/06/1992 |
| 5121619 | Speed release mechanism for cylinder and plug assembly for use with cabinet locks A cylinder and plug assembly is released by depression of a springloaded release button. The release button engages a radially directed aperture in a unitary shell. The radially directed aperture has longitudinally directed, diametrically opposed extensio... | 06/16/1992 |
| 5102408 | Fluid mixing reservoir for use in medical procedures A sterile fluid mixing reservoir for storing premeasured quantities of fluids for subsequent combination is disclosed. The reservoir has a flexible outer bag which fully encloses one or more inner containers. The inner containers have self-opening mechani... | 04/07/1992 |
| 5078691 | Multiple-dose fluid delivery system and method A multiple-dose reservoir syringe and manifold fluid delivery system are disclosed. The multiple-dose syringe has an inner cylindrical chamber which is selectively communicable with an outer annular fluid reservoir. The fluid can be withdrawn from the out... | 01/07/1992 |
| 5076919 | Self-cleaning vacuum filter with relatively moveable surfaces for recovering oil from beaches A self-cleaning vacuum head is disclosed which has the ability to discriminate between particles of different size, or the ability to separate fluids from particulate matter. The invention has two relatively moving surfaces which provide a changing locus ... | 12/31/1991 |
| 5042354 | Action for upright piano The subject action is a modification of the traditional upright action. The traditional jack spring is eliminated. Its function is assumed by a jack/repetition spring, which is a compression spring adjustably mounted between the jack near the end that eng... | 08/27/1991 |
| 5038589 | Rekeyable cam lock A rekeyable cam lock has a plug rotatably received in a cylinder. The plug has a keyway and pin tumblers and is provided with a circumferential groove rearward of the pin tumbler. The cylinder has a bore to receive the plug and a pair of transverse holes ... | 08/13/1991 |
